Streicher says she tried out several shades of pink while en route from Paris to New York (“We did her makeup on the plane”) before deciding on Nars Satin Lip Pencil in Villa Lante, a highly pigmented, creamy hot-pink hue.

“You usually team a red lip with a red dress, or you do a nude lip,” says Blunt, who wanted something a little less predictable. The reason it caused a stir? The lip color clashed with Blunt’s true-red Prada column gown. Clearly those days are behind her as the British beauty, 31, boasts one of the year’s most daring lip looks - Pepto Bismol pink - spotted at the Edge of Tomorrow premiere in New York City. “I never wore lipstick and even told her, ‘I don’t like lipstick,’ ” says Blunt, who was introduced to Streicher by her husband (then boyfriend), John Krasinski. When makeup artist Jenn Streicher began working with Blunt five years ago, she had to push the nude-lip-loving actress to try something bolder. MUST-HAVE PRODUCT: Blunt wore sold-out Nars Satin Lip Pencil in Villa Lante Nars Audacious Lipstick in Marisa is a look-alike shade WHY IT MATTERS: Three premiere looks in three cities (London, Paris and New York City) - all within 24 hours for her sci-fi thriller co-starring Tom Cruise - included a clashing lip color that upped the ante on red-carpet beauty risks. WHEN: Edge of Tomorrow premiere in New York, May 28

Says Lancien: “Cannes is one of the most intense moments in beauty each year.”

Lancien used Elnett hairspray both times to keep Lively’s locks in place: “It’s the first and final step for every style I do.” The grand finale was a classic red lip, sleek side-part and exaggerated bun topped with 180 carats in diamonds for husband Ryan Reynolds’ The Captive debut - the ultimate display of Hollywood glamour on La Croisette. The L’Oreal ambassador was a red-carpet chameleon, going from a playfully sexy braided ponytail with smoky eye at the opening ceremony’s Grace of Monaco premiere to voluminous, beachy waves that radiated California cool at the following evening’s Mr.

“Blake has distinct taste and she had a strong vision of how she wanted to look each night in Cannes,” says hairstylist Stephane Lancien, who put his skills to work turning 27-year-old Lively’s ideas into three standout styles.

Effortless With You by Lizzy Charles